Does to many calories mean high cholesterol?

How do the uv rays cause damage?   what exactly causes the skin to burn;   can you be more specific about this mechanism?   3. how do photosensitive medications increase a person's sensitivity to sunlight and therefore increase their risk of getting burned?     what kind of medications can increase photo-sensitivity, can you think of some examples?

Why do farmer's kill animals in a mean way, don't farmer's have feeling's?

Ireally need to know this answer asap